What happened to the mobile phone screen?

If you use Huawei mobile phone, the screen is insensitive and the touch screen fails, please follow the following methods to troubleshoot.

1, hardware failure:

If the screen is not sensitive to touch after being damaged, or an unofficial screen is replaced, please back up important data in advance and take the purchase invoice to Huawei customer service center for testing and processing.

2. External environmental factors:

(1) If there is a strong electromagnetic field nearby (microwave oven, induction cooker, power station, etc.). ), it is recommended to move away from the strong magnetic field to see if the screen function returns to normal. Strong electromagnetic field will affect the function of touch screen.

(2) If the ambient temperature is abnormal (higher than 50 or lower than -20), it is recommended to move to other places and try again. Abnormal ambient temperature will lead to abnormal screen display and touch function.

3, hardware accessories:

(1) If the screen is wet, sweaty or dirty, please keep the phone clean, wipe the screen clean and try again. Water, sweat and dirt on the screen will affect the touch response of the screen.

(2) If there is a film on the screen of the mobile phone: Please confirm whether the film thickness exceeds 0.2 mm. It is recommended to use a film with a thickness of not more than 0.2 mm. Too thick film on the screen will affect the touch sensitivity of the screen.

(3) If the screen is abnormal when charging with non-standard charger and data cable, please replace the standard charger. The interference shielding ability of non-standard charger is weak, which will affect the function of mobile phone touch screen.

4. The influence of software functions or settings:

(1) If the third-party screen locking software is installed on the mobile phone, it is recommended to uninstall the third-party screen locking software, and then confirm whether it is back to normal. Some third-party screen locking software may conflict with the system's own screen locking function, leading to screen jumping, such as: the screen suddenly jumps to the screen locking interface or camera interface. If you want to lock the screen quickly and don't want to lock the screen with the power button, it is recommended to use the "one-button lock screen" tool that comes with Huawei's mobile phone. Specific operation: press and hold the blank position of the home screen for about 3 seconds to enter the desktop setting interface, click the widget, slide left and right on the small toolbar at the bottom of the screen to find a one-button lock screen, and press and hold the tool icon to drag to the home screen. Then, click the one-button screen lock widget on the main screen to quickly lock the screen.

(2) Whether to turn on glove mode: If not, it is recommended to turn off glove mode and try again. When glove mode is turned on, the sensitivity of touch screen extinction will be improved, resulting in misoperation.

(3) Please confirm whether the mobile phone is stuck, such as the following phenomena: the mobile phone loads slowly when opening the game, the mobile phone can't play local video or music smoothly, the mobile phone plays video with a black screen, and the mobile phone pops up with no response prompt when opening the application or using the function. If the system is stuck, it may also be mistaken for screen insensitivity or screen failure. Please close the temporarily unused background applications, optimize the system with the mobile phone housekeeper or restart the mobile phone, and then confirm whether it is back to normal.

(4) It is recommended that you back up your mobile phone data, upgrade your mobile phone system to the latest version, and then try the screen operation to confirm whether to restore it.

5. If the above methods fail to solve your problem, please back up your important data (QQ, WeChat separately) in advance, and bring the purchase invoice to Huawei customer service center for testing and processing.